I read the White paper, about bending the cost curve and its writer had a very limited view on the healthcare cost curve.
Before he gets involved with a limited network he needs to set one up or be involved with his type of contract. Adding value is not about just reducing price. But that is an Education and you need to pay for that.
As for a retail pharmacy many still have a long way to go in understanding Specialty medicine and almost all don't get cost outcome Objectives, that says a lot about retail.